Pin mistune since newer versions raise an error

It appears to be unmaintained miyakogi/m2r#66
joelostblom · Mar 22, 2022 · 1a89b5c · 1a89b5c
1 parent d627249
commit 1a89b5c
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/doc/requirements.txt b/doc/requirements.txt
@@ -3,3 +3,4 @@ jinja2
 numpydoc
 pillow
 pydata-sphinx-theme
+mistune<=0.8.4